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Biomedical subjects

L M Elson

Publications and source records attributed to L M Elson.

8 recordsLinked to original sources
PubMed1996

Flashlamp pulsed dye laser (585 nm). Treatment of resistant verrucae.

The treatment of recalcitrant plantar verrucae has represented challenging clinical problems for podiatric physicians. A procedure described by Borovoy et al studying 46 patients initially indicated a success rate of 76.1%. A review of 200 patients who have been treated with refined treatment protocols and modalities is presented, with an overall success rate of 79.9%. The Candella SPTL 1 and 1B have been used in the study. These lasers produce a full 450-microsecond pulse at 585 nm wave length. Hand pieces ranging from 2 mm to 7 mm were used. The energy density (fluence) used ranged from 6 to 9 J/cm2. Discussion will be presented including treatment protocol, modalities, comparisons with other forms of treatment, and overall success rates.

Adolescent↗
PubMed1988

Laser vasovasostomy. A comparative retrospective study, using bioquantum microsurgical carbon dioxide laser.

Microsurgical carbon dioxide (CO2) vasovasostomy was successfully achieved by fusion coagulation of protein with power densities of 40 W/cm2. When 20 and 32 W/cm2 were used, the histologic picture was found to be a uniform leakage of sperm with secondary granuloma formation, suggesting that at this power density, unsuccessful attempts at welding the vas deferens will result.

Animals↗
PubMed1985

CO2 laser excision of xanthelasma lesions.

Xanthelasma of the eyelids traditionally has been treated by excision, followed by suturing of the defect. A new technique of ablating these lesions using a superpulsed CO2 laser was used to treat a series of nine patients with xanthelasma. Advantages of this technique include: (1) superb hemostasis intraoperatively; (2) magnified view of tissue removal, enhancing complete excision; (3) the absence of suturing; (4) the avoidance of reconstructive procedures; and (5) a high degree of patient satisfaction, with minimal or no postoperative pain.

Aged↗
PubMed1980

Suppression of the leukocyte adherence inhibition response to murine-sarcoma-virus-induced tumors by tumor-associated suppressor cells.

The tumor-specific leukocyte adherence inhibition (LAI) response of lymphoid cells from C57B1/6 mice sensitized to a murine-sarcoma-virus (MuSV)-induced tumor was inhibited by adherent phagocytic spleen cells from mice with progressively growing RBL-5 tumors. Both the direct LAI response and the formation of the mediator of LAI were sensitive to the suppressive activity of the progressor spleen macrophages. Suppression of LAI was not restricted by H-2 differences between the sensitized lymphocytes and progressor macrophages. Suppression was also nonspecific since the antibody plaque-forming cell response of normal lymphocytes to triphenylated hemocyanin was lowered by the addition of progressor spleen macrophages. Removal of adherent suppressor macrophages during the late stages of tumor growth revealed greatly elevated LAI reactivity not detectable in an unfractionated population.

Animals↗
PubMedDate not supplied

Healing of laser-induced defects of articular cartilage: preliminary studies.

The investigators have induced defects to the articular surfaces of knee joints in rabbits with the use of a CO2 laser. Subsequent healing of these defects have been studied and are described. This work has demonstrated healing with formation of fibrocartilage and hyaline cartilage in two of eight cases. Further investigation with improved techniques will be undertaken in order to produce effective healing on a more consistent basis. This article also reviews previous investigation related to the healing of cartilage defects.

Animals↗
PubMedDate not supplied

Laser safety in podiatry.

Lasers are being used more often in podiatric medicine than ever before. New modalities have certain characteristics that might endanger either the patient and/or the operator or the supportive staff. "Laser Safety in Podiatry" will outline the safety measures in patient protection, operator protection, and supportive staff protection.

Equipment Safety↗